Interlocking shingle



Oct. 25, 1949.

D. B. RQNZONE INTERLOCKING SHINGLE Filed spt. 24', 1948 ATTOR N EY Patented Oct. 25, 1949 INTERLOCKING SHINGLE David B. Ronzone, Wilmington, Del., assigner to Commonwealth Roofing Corporation, Wilmington, Del.

Application September 24, 1948, Serial No. 50,959

(Cl. 10S-7) 1 Claim. 1

The present invention relates to a new and improved form of shingle of the interlocking type.

The improved 'shingle of this invention comprises a rectangularly shaped shingle having locking tabs and cooperating locking slots wherein these locking tabs and slots are wholly confined within the boundaries of the shingle.

Heretofore, shingles of this nature have had slots formed in the body thereof, said slots extending inwardly from the edges of the shingle to define the locking tabs and the cooperating locking slots.` This often results in a number of imperfect shingles due to the fact that the tabs are easily bent and torn either during assembling of the shingles on the roof or after the shingles have been interlocked.

In the present invention, the locking tabs and locking slots are formed inwardly from the edges of the shingle thus producing Yan interlocking shingle having an uninterrupted continuous edge.

A further important feature of the present invention is the provision of a shingle having preformed nailing holes therein to provide a guide for properly laying the shingles. One of the preformed holes is so related With respect to the locking slot as to more readily permit entrance of a locking tab in said slot after a nail has been driven through said hole.

A still further feature of the present invention is the provision of cooperating portions on the shingle to protect the roof against side-lash from rai'n or wind.

The present shingle may be made of metal or of composition, is relatively simple to manufacture, can be assembled with a minimum amount of labor, and when applied to a roof presents a most attractive appearance.

Other objects and advantages of the present invention will be apparent from the following detailed description taken in connection with the accompanying drawing wherein:

Figure 1 is a plan View of a preferred embodiment of the shingle forming the subject matter of the present invention.

Figure 2 is a fragmentary plan view of a portion of a roof formed by laying the shingles of Figure 1.

Figure 3 is an exploded view showing the manner of assembling two shingles.

Figure 4 is an enlarged sectional view taken along the line 4--4 of Figure 2.

Figure 5 is a plan view of a slightly modied form of shingle.

Referring to the drawing in detail, Figure 1 illustrates a preferred embodiment of the invention wherein the shingle is formed of aluminum or other equivalent sheet metal. The shingle is of generally rectangular conguration and constitutes a body portion I0 bounded by the edges II, I2, I3 and I4. A pair of slots I5 are stamped out of the metal shingle and constitute the locking slots. The locking tabs I6 are formed by cuttingU-shaped slots in the shingle as indicated by numeral II. The locking tabs I6 are one inch wide and the slots are approximately one inchand one sixteenth wide in order to receive the tabs.

As seen in Figure 1, a pair of holes I8 are stamped out of the shingle, adjacent the slots I5 and receive the usual nail for attaching the shingle to a roof. An additional nail hole I9 is provided midway of the shingle adjacent edge I2 for properly lining up the shingles as will more clearly appear as the description proceeds.

In order to insure against side-lash, the shingle is provided with a pair of V-shaped grooves which may be pressed out of the shingle during the stamping operation. One of the grooves, designated by the numeral 20 is located adjacent the slots I5 and the second groove 2| is formed at the edge I3. The grooves do not extend entirely across the width of the shingle so as not to interiere with the proper overlapping of adjacent rows of shingles as seen in Figure 2.

The shingles may be assembled in interlocked relation in the manner shown in Figures 2, 3 and 4 wherein 22 denotes the roof member to which the shingles are applied and 23 the shingle nails. In

`assembling the shingles, the singles are laid from left to right beginning in the lower left hand corner of the roof. The first shingle is laid and nails driven through the holes I8. As the nails are driven home, the metal adjacent these holes to the left of the slots I5 is forced downwardly leaving an enlarged slot for receiving the locking tab I6. The next adjacent shingle is then applied by pressing down on the locking tabs and inserting said tabs in the slots I5. The grooves 2B and 2| are so positioned that when the next adjacent shingle is insertedland driven home, the grooves 20 and 2I overlap. In this position, nails are driven through the holes I8 of the next shingle. This operation is continued until the lower row of shingles is assembled.

The rst shingle of the second row is applied by juxtaposing its lower hole I8 over hole I9 of theI of shingles. All of the rows of shingles may be assembled in a similar manner. f

As described :above the invention has been appresent invention may also be applied to siding shingles.

It will be noted that the construction herein shown and described is well adapted to accomplish the objects of the present invention. It will be understood that minor changes may be made in' the present invention without departing from the spirit thereof. Therefore, I do not wish to be limited precisely to the construction herein shown except as may be required bv the appended claim considered with reference to the prior art.

Having thus described the invention, what is claimed is:

An interlocking shingle comprising a body other ridge formed at the rear edge of the shingle.

portion of general rectangular conguration having a forward edge, transverse edges and a rear edge, slots formed in the body portion adjacent the forward edge and spaced inwardly of the edges of the shingle, .cooperating locking tabs formed in the body of the shingle adjacent the rear edge and spaced inwardly of the edges of the shingle, preformed nailing holes provided in the body portion adjacent the slots and to the rear thereof, a preformed hole formed in the body of the shingle adjacent an upper transverse edge and midway of the length of the shingle, and raised ridges formed in the shingle extending partially across the width of the shingle, one of said ridges formed adjacent the slots and the DAVID B. RONZON'E.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 822,199 Fischter May 29, 1906 1,701,704 Stinson Feb. 12, 1929 2,035,369 Harshberger Mar. 24, 1936 

